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PM6670S View Datasheet(PDF) - STMicroelectronics

Part Name
Description
MFG CO.
'PM6670S' PDF : 53 Pages View PDF
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PM6670S
Pin settings
Table 2. Pin functions (continued)
Pin
Function
18
VCC
+5 V low-side gate driver supply. Bypass with a 100 nF capacitor to PGND.
Current sense input for the switching section. This pin must be connected
19
CSNS
through a resistor to the drain of the synchronous rectifier (RDSon sensing) to
set the current limit threshold.
20
PHASE Switch node connection and return path for the high-side gate driver.
21
HGATE High-side gate driver output
22
BOOT
Bootstrap capacitor connection. Positive supply input of the high-side gate
driver.
Linear regulator input. Connect to VDDQ in normal configuration or to a
23
LDOIN
lower supply to reduce the power dissipation. A 10 μF bypass ceramic
capacitor is suggested for noise rejection enhancement. See Section 7:
Device description on page 20
24
VTT
LDO linear regulator output. Bypass with a 20 μF (2x10 μF MLCC) filter
capacitor.
Doc ID 14432 Rev 4
7/54
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